Did you access the tutorial from a new game or through the menu?
Menu.

Prior to campaign completion, did you replay missions through mission select?
No.

If it didn't unlock initially, how did you finally get it to pop?
No Succes with it yet.

Did you press the X button to skip cutscenes either at the end of a chapter or during a mission briefing?

No.

I don't have a clue what is going on with the QA Teams at the big publishers/developers these days.
This is so fucking frustrating.
I am not seeing me completeing the Campaign on SS again.
This game can go and rot on the used game shelfes at Gamestop if this crap isn't fixed in the future.